19954858

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:307

約数の個数: 48

約数和(自身を含む): 38561184

約数和(自身を除く): 18606326

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 107, 154, 173, 214, 346, 539, 749, 1078, 1177, 1211, 1498, 1903, 2354, 2422, 3806, 5243, 8239, 8477, 10486, 13321, 16478, 16954, 18511, 26642, 37022, 57673, 93247, 115346, 129577, 186494, 203621, 259154, 407242, 907039, 1425347, 1814078, 2850694, 9977429, 19954858]

約数ペア:

[(1, 19954858), (2, 9977429), (7, 2850694), (11, 1814078), (14, 1425347), (22, 907039), (49, 407242), (77, 259154), (98, 203621), (107, 186494), (154, 129577), (173, 115346), (214, 93247), (346, 57673), (539, 37022), (749, 26642), (1078, 18511), (1177, 16954), (1211, 16478), (1498, 13321), (1903, 10486), (2354, 8477), (2422, 8239), (3806, 5243)]